#include <iostream>
using namespace std;

const int N = 1010;
int n, m, q;
int a[N][N], s[N][N];

int main()
{
    ios::sync_with_stdio(false);
    cin >> n >> m >> q;
    for(int i = 1; i <= n; i ++)
        for(int j = 1; j <= m; j ++)
            cin >> a[i][j];
    
    for(int i = 1; i <= n; i ++)
        for(int j = 1; j <= m; j ++)
            s[i][j] = s[i-1][j] + s[i][j-1] - s[i-1][j-1] + a[i][j];

    while(q --)
    {
        int x1,y1,x2,y2;
        cin >> x1 >> y1 >> x2 >> y2;
        cout << s[x2][y2] + s[x1 - 1][y1 - 1] - s[x1 - 1][y2] - s[x2][y1 - 1] << endl;
    } 
    return 0;
}